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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-2252) off-heap memtables
Date Sat, 13 Aug 2011 06:00:32 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-2252:
--------------------------------------

    Attachment: 2252-v4.txt

rebased.  tests pass, but could use a glance at the counters to make sure it's not missing
an opportunity to use slab.

otherwise, I think this is ready to go based on the above discussion.

> off-heap memtables
> ------------------
>
>                 Key: CASSANDRA-2252
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2252
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>             Fix For: 1.0
>
>         Attachments: 0001-add-MemtableAllocator.txt, 0002-add-off-heap-MemtableAllocator-support.txt,
2252-v3.txt, 2252-v4.txt, merged-2252.tgz
>
>   Original Estimate: 0.4h
>  Remaining Estimate: 0.4h
>
> The memtable design practically actively fights Java's GC design.  Todd Lipcon gave a
good explanation over on HBASE-3455.

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